Hyper Ice v. MerchSource: Percussion Massager Patent Dismissed in 7 Days
Hyper Ice, Inc. filed a patent infringement action against MerchSource LLC — trading as Sharper Image — over the Powerboost Pro+ Hot & Cold percussion massager, asserting US12036174B1. The case was voluntarily dismissed without prejudice just 7 days after filing, before MerchSource filed any answer or motion.
Seven-day patent filing: tactical probe or premature launch?
On September 19, 2024, Hyper Ice, Inc. filed a patent infringement complaint against MerchSource LLC, doing business as Sharper Image, in the United States District Court for the Central District of California. The asserted patent, US12036174B1, covers technology embodied in the Powerboost Pro+ Hot & Cold percussion massager — a consumer wellness device combining percussive therapy with hot and cold temperature therapy. Hyper Ice was represented by Lewis Brisbois Bisgaard & Smith LLP and Miller Barondess, LLP.
Just seven days after filing, on September 26, 2024, Hyper Ice filed a Notice of Dismissal Without Prejudice pursuant to Fed. R. Civ. P. 41(a)(1)(A)(i). The notice confirmed that MerchSource had not yet filed an answer or motion for summary judgment, meaning Hyper Ice was entitled to dismiss as of right — no court order was required. A dismissal without prejudice means the claims have not been adjudicated on the merits and Hyper Ice retains the right to re-file the same claims at a future date.
A resolution within seven days — before service was even confirmed to have been completed — is notable and suggests the filing may have served a tactical or transactional purpose rather than signalling intent to litigate to judgment. Possibilities consistent with the public record include a rapid negotiated resolution, a licensing discussion, or a premature filing subsequently reconsidered. The absence of defendant counsel on record and no docket activity beyond the complaint and dismissal notice leaves the underlying commercial motivation undisclosed.
Filing to Dismissed without Prejudice in 7 days
Resolved in 7 days — unusually fast even for early voluntary dismissals
Dismissed without prejudice: what this outcome means for both parties
Rule 41(a)(1)(A)(i): dismissal as of right, no court order needed
Under Fed. R. Civ. P. 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order by filing a notice of dismissal before the defendant serves an answer or a motion for summary judgment. Hyper Ice confirmed MerchSource had taken neither step. The dismissal is self-executing — it takes effect upon filing and requires no judicial approval, making it one of the most procedurally clean exits available in federal civil litigation.
Pre-answer voluntary exitWithout prejudice: the infringement claims remain live
A dismissal without prejudice does not resolve the underlying dispute on the merits. Hyper Ice explicitly filed this notice ‘without prejudice’, meaning it retains the right to re-file the same patent infringement claims against MerchSource in the future, subject to applicable statutes of limitations. The public record does not disclose whether a settlement, licence, or other agreement accompanied the dismissal — the door remains open on both sides.
Claims not extinguishedMerchSource escapes this action — but faces continued exposure
MerchSource, operating as Sharper Image, obtained a clean procedural exit with no adverse judgment, no injunction, and no cost order. No defence counsel appeared on the docket, suggesting the matter may have been resolved bilaterally before formal litigation posture was established. However, because the dismissal carries no preclusive effect, continued distribution of the accused product line without a licence or design-around remains a potential ongoing infringement risk.
No preclusion — risk persistsSeven-day lifecycle signals strategic IP enforcement, not full litigation
In the consumer wellness and percussive therapy device sector, a filing-and-dismissal pattern of this brevity typically signals that the complaint functioned as a commercial lever — to accelerate licensing talks, signal patent coverage to the market, or prompt a rapid business resolution. Competitors and distributors in the hot and cold percussion massager space should note that US12036174B1 remains fully enforceable and that Hyper Ice has demonstrated a willingness to file suit.
Patent remains enforceableFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Hyper Ice, Inc. | Company | Consumer percussive therapy device maker — holder of US12036174B1Search in Eureka ↗ |
| Defendant | Merchsource | Individual | MerchSource LLC, dba Sharper Image — consumer electronics and wellness product distributorSearch in Eureka ↗ |
| Plaintiff counsel | Benjamin A. Herbert | Attorney | Counsel for Hyper Ice, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Lawrence Robert LaPorte | Attorney | Counsel for Hyper Ice, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Lewis Brisbois Bisgaard & Smith LLP | Law Firm | Representing Hyper Ice, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Miller Barondess, LLP | Law Firm | Representing Hyper Ice, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | California Central District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i) precisely — a self-executing procedural mechanism available only before the defendant files a responsive pleading. The explicit confirmation that MerchSource had not answered or moved for summary judgment is a standard but important recital; it is the legal predicate for the as-of-right dismissal. The without-prejudice designation is the commercially significant phrase: Hyper Ice forfeits nothing on the merits, and the patent infringement claims survive in full for potential future assertion.
US12036174B1 — Powerboost Pro+ Hot & Cold percussion massager
US12036174B1 protects technology embodied in the Powerboost Pro+ Hot & Cold percussion massager — a consumer recovery device that integrates percussive mechanical stimulation with active thermal control (both heating and cooling). The underlying application number is US18/526980. Percussive therapy devices have grown rapidly from professional sports recovery tools into mainstream consumer wellness products, and the addition of thermal capability represents a meaningful technical differentiation that Hyper Ice has sought to protect through this grant.
For competitors and distributors in the consumer wellness and recovery device market — including brands selling under licences such as Sharper Image — this patent represents a concrete enforcement risk on combined hot/cold percussion massager products. Hyper Ice’s willingness to file suit in the Central District of California, a jurisdiction well-versed in IP matters, and its rapid procedural action suggests an active enforcement posture. Companies developing or sourcing comparable devices should assess whether their thermal-percussive feature sets fall within the claim scope of US12036174B1.
Should you run an FTO search against US12036174B1?
Any company developing, manufacturing, importing, or distributing a percussion massager with integrated hot or cold therapy functionality should treat US12036174B1 as a priority clearance target. This case demonstrates that Hyper Ice is prepared to assert this patent against major retail distribution channels — not just direct manufacturing competitors. R&D teams adding thermal features to existing massage gun product lines face elevated risk without a documented FTO position.
PatSnap Eureka’s FTO Search Agent can map the claim scope of US12036174B1 against your product specifications, identify relevant prior art that may limit enforceability, and surface related Hyper Ice continuation or family applications that could extend coverage. Running an automated FTO analysis before your next product launch or distributor agreement is signed is materially faster and less expensive than defending a district court infringement action.
Run a freedom-to-operate analysis on US12036174B1 to assess your product’s exposure
Run FTO in Eureka →Similar percussive therapy device patent cases in US district courts
Cases involving percussion massager and consumer recovery device patents in US federal district courts, including the Central District of California.
What this case signals for the percussive therapy device IP landscape
A seven-day lifecycle in federal court is rarely accidental. Here is what IP and product teams should take from this filing.
US12036174B1 is live and Hyper Ice is actively enforcing it
The filing confirms Hyper Ice is prepared to use US12036174B1 offensively against distributors selling competing hot and cold percussion massager products. Any brand or retailer stocking products that overlap with the Powerboost Pro+ Hot & Cold feature set should treat this case as a signal to conduct FTO analysis before expanding distribution.
Pre-answer dismissals can mask rapid settlements or licensing outcomes
Seven-day dismissals in patent cases are uncommon. The absence of defendant counsel on record and no court activity beyond the notice suggests the parties may have reached an off-docket resolution quickly. Businesses in adjacent product categories should monitor whether MerchSource’s Sharper Image line is subsequently modified or removed — that outcome would be consistent with a negotiated exit.
Hyper v Merchsource — key questions answered
Dismissed without prejudice means the patent infringement claims were dropped without a ruling on the merits. Hyper Ice retains the right to re-file the same claims against MerchSource in the future. No findings were made regarding whether US12036174B1 was infringed, valid, or enforceable.
Hyper Ice asserted US12036174B1, with underlying application number US18/526980. The patent covers technology embodied in the Powerboost Pro+ Hot & Cold percussion massager, which combines percussive therapy with thermal (heating and cooling) functionality.
The public record does not disclose the reason. Hyper Ice filed a voluntary dismissal without prejudice under Rule 41(a)(1)(A)(i) before MerchSource filed any answer. A dismissal this early is consistent with a rapid settlement, licensing agreement, or a strategic reconsideration of timing — but none of these outcomes is confirmed on the docket.
MerchSource LLC is a consumer products distributor that operates under the Sharper Image brand name. In this case, MerchSource was accused of infringing Hyper Ice’s US12036174B1 patent in connection with products in the Powerboost Pro+ Hot & Cold percussion massager category. No defence counsel appeared on the docket before dismissal.
Yes. A dismissal without prejudice under Rule 41(a)(1)(A)(i) has no preclusive effect on the merits. Hyper Ice can re-file the same patent infringement claims against MerchSource, subject to the applicable statute of limitations for patent infringement (generally six years under 35 U.S.C. § 286) and any agreements reached between the parties.
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